Three Way Light Wiring

With a pair of 3 way switches either can make or break the connection that completes the circuit to the light.

Three way light wiring.

First run a 2 wire cable from the wall power to the black screw on 1 of the switches. Wiring diagram 3 way switch with light at the end. To wire a 3 way light switch you ll need 2 3 way light switches 2 2 wire non metallic cables 1 3 wire non metallic cable and 2 6 inch grounding wires. Wiring a 3 way light switch.

This 3 way light switch diagram shows connections when the power comes into the first switch on to the second switch and then on to two or more lights switched by the 3 way circuit. 3 way switch wiring diagram line to light fixtureline voltage enters the light fixture outlet box. Three way switches allow for controlling a light fixture from two separate locations these are usually used at the top and bottom of a flight of stairs or at two different entrances to a room. Wiring a 3 way light switch is certainly more complicated than that of the more common single pole switch but you can figure it out if you follow our 3 way switch wiring diagram.

Regardless of what 3 way switch wiring diagram you re following you ll need to use a 3 wire cable to connect the two 3 way light switches. Three wire cable runs between the switches and 2 wire cable runs to the light. No longer allowed after 2011 nec if no neutral wire in switch boxes 3 way switch wiring diagram light fixture between switchesline voltage enters the first 3 way switch outlet box light fixture is located between switch boxes no longer allowed after 2011 nec if no neutral wire in switch boxes.